If Jesus was to be in the grave three days and nights, how do we fit those between Good Friday and Easter Sunday?

There are several solutions to this problem. Some have suggested that a
special Sabbath might have occurred, so that Jesus was actually crucified on a
Thursday. However, a solution, which seems to me to be more convincing, is
that Jesus was indeed crucified on a Friday but that the Jewish method of counting
days was not the same as ours.

In Esther 4:16, we find Esther exhorting Mordecai to persuade the Jews
to fast. “Neither eat nor drink for three days, night or day” (NKJV). This was
clearly in preparation for her highly risky attempt to see the king. Yet just two
verses later, in Esther 5:1, we read: “Now it happened on the third day that
Esther put on her royal robes and stood in the inner court of the king’s palace.”
If three days and nights were counted in the same way as we count them today,
then Esther could not have seen the king until the fourth day. This is completely
analogous to the situation with Jesus’s crucifixion and resurrection.

For as Jonah was three days and three nights in the belly of the
great fish, so will the Son of Man be three days and three nights in the
heart of the earth (Matthew 12:40; NKJV).

Now after the Sabbath, as the first day of the week began to
dawn, Mary Magdalene and the other Mary came to see the tomb
(Matthew 28:1; NKJV).

Then, as they were afraid and bowed their faces to the earth,
they said to them, “Why do you seek the living among the dead?
He is not here, but is risen! Remember how He spoke to you when
He was still in Galilee, saying, ‘The Son of Man must be delivered
into the hands of sinful men, and be crucified, and the third day rise
again’” (Luke 24:5–7; NKJV).

If the three days and nights were counted the way we count them, then
Jesus would have to rise on the fourth day. But, by comparing these passages, we
can see that in the minds of people in Bible times, “the third day” is equivalent
to “after three days.”

In fact, the way they counted was this: part of a day would be counted as
one day. The following table, reproduced from the Christian Apologetics and
Research Ministry (CARM) website, shows how the counting works.1

Day One

Day Two

Day Three

FRI
starts at
sundown on
Thursday

FRI
ends at
sundown

SAT
starts at
sundown on
Friday

SAT
ends at
sundown

SUN
starts at
sundown on
Saturday

SUN
ends at
sundown

Night

Day

Night

Day

Night

Day

Crucifixion

Sabbath

Resurrection

This table indicates that Jesus died on Good Friday; that was day one. In
total, day one includes the day and the previous night, even though Jesus died
in the day. So, although only part of Friday was left, that was the first day and
night to be counted. Saturday was day two. Jesus rose in the morning of the
Sunday. That was day three. Thus, by Jewish counting, we have three days and
nights, yet Jesus rose on the third day.

It should not be a surprise to us that a different culture used a different
method of counting days. As soon as we adopt this method of counting, all the
supposed biblical problems with counting the days disappear.